Using multiple Labels in Infinity

I recently got formatting help from the Pabbly team regarding adding Labels to Infinity - see here: https://forum.pabbly.com/threads/using-labels-in-infinity.10333/

This works fine:

But what format should I use if I want to add multiple labels to the same Attribute? This formatting does not work:

Error:

Hey @wibbler

As we can see from your screenshot you haven't passed the comma between the labels Id as mentioned in the help text.

Kindly enter comma-separated values in double quotes within square brackets.

eg. -
["wet34tret3y3yt3t34t34tt","kjhdw7eyf8w9udwnudid"]